baber/WOPTO huggingface dataset:
Patent GB-1110192-A (GB)
Title: Improved coil and spool and an improved method of making a coil
IPC: H01F5/04
Filed: 1966-06-24
Abstract: 1,110,192. Coil windings. HEINEMANN ELECTRIC CO. 24 June, 1966 [6 July, 1965], No. 28438/66. Heading H1P. In an electrical coil, e.g. for a voltage relay an insulating, e.g. nylon spool has integral flange 14 at one end extending from a hollow core and a pair of adjacent integral flanges 16, 18 at the other end having therebetween an open channel 25; flange 16 being notched at one corner and flange 18 being recessed at 35 to receive magnetic laminations and having a shorter side omitted. The entry surface of the channel is coplanar with the surface of the core and is chamfered at 45 to join the raised base of the channel. The start end 33 of the insulated winding 20 is laid into the channel section A, and the required number of turns are applied after which the ends are taped to the spool and insulated heavier leads are soldered thereto. The start end lead wire and its soldered joint to the winding extending through the notched corner are laid in the channel 25 and carried round sections A, B, C thereof, while the finish end lead wire 29 is taped to the winding at 60 and its free end laid and carried round the section of the channel in wedging relation to lead 27. A layer of tape is then applied to the centre exterior of the wound spool, which may alternately be circular.
Patent GB-377505-A (GB)
Title: Improvements in pulp digesters
IPC: D21C7/14
Filed: 1931-10-14
Abstract: 377,505. Digesters. MORTERUD, E., 18, Kongensgate, Oslo, Norway. Oct. 14, 1931, No. 28530. Convention date, March 16. [Class 64 (i).] The liquor in a digester is sucked in through a sieve by a pump 2 and driven through pipes 5, 6 which are each provided with an independent flow-regulating valves and independently controlled direct contact steam-heating chambers 7, 8, the liquor then passing back into the digester through sieves 9, 10. The apparatus is situated within the digester,which may be divided into several zones each of which is provided with similar heating and circulating means.
Patent GB-837756-A (GB)
Title: Improvements in machines for producing helical coils of wire
Inventor: CROSS ROLAND CLAUDE
IPC: B21F3/04
Filed: 1958-09-05
Abstract: 837,756. Coiling. CROSS MANUFACTURING CO. (1938) Ltd. Sept. 5; 1958. No. 28550/58. Class 83 (4). A machine for coiling wire on a rotated mandrel by driven peripherally-grooved roller(s) co-operating therewith, the coiled wire being moved axially, and over the free end, of the mandrel by one surface of the groove, is characterized in that the groove of the, or each, roller is of V-section and the roller is frustoconically chamfered around one edge leading from the groove, the roller(s) being disposed so as to lie with its axis (or their axes) at an acute angle to the mandrel axis with the conical face of the chamfered edge in running contact with the mandrel and the side of the groove adjacent the chamfer facing the free end of the mandrel when it engages the wire. Two coiling rollers 4, mounted in vertically and horizontally adjustable heads 11, and a mandrel 3 are rotated by a motor 9 through changespeed gear 8 and differential gear 7. Each roller 4, which is inclined to the mandrel 3, has a peripheral V-groove 16 and the edge of the roller which is applied to the mandrel is frusto-conically chamfered at 19. A side 17 of the groove 16 presses radially of the mandrel on wire 20 and a side 18 of the groove 16 causes the wound wire to move axially of the mandrel 3. The disadvantages of a grooved roller 4a, Fig. 6, rotating on an axis parallel to the axis of a mandrel 3a are pointed out.
Patent GB-960426-A (GB)
Title: Improvements relating to extensible supports for variable height platforms for workmen
IPC: B66F11/04
Filed: 1960-08-19
Abstract: 960,426. Load handling machines. A. REINARTZ, A. REINARTZ, and M. REINARTZ, [trading as M. REINARTZ]. Aug. 19, 1960 [Aug. 19, 1959], No. 28757/60. Heading B8H. [Also in Division E1] A mobile platform 5 for workmen mounted on a double hinged arm 7, 8 on a base 6 mounted on a vehicle is maintained horizontal by means of a sprocket 22 fixed to the platform and connected by an endless driving chain 31 to a sprocket 30 fixed to the shaft 29, connecting the parts 7, 8 of the arm to which is also fixed a sprocket 40 connected by an endless driving chain 39 to a sprocket 41 fixed to the base 6 or in a modification the sprocket 30 is connected by a radial arm and a link to a fixed pivot on the base 6. The sprocket 41 is fixed to the shaft 38 which is held stationary by a worm gear 43. When it is desired to stow the arm 7 and 8 and the platform 5 horizontally on the vehicle carrying the apparatus the worm gear is moved to bring the platform 5 into line with the arm 7. The arms 7, 8 are raised by hydraulic cylinders 12, 13 respectively controlled from the platform 5. An auxiliary cylinder 15 in series with the cylinder 13 can be used to move the arm 8 still further, the pivot connecting the cylinders being mounted on a pivoted arm 16.
Patent GB-1086342-A (GB)
Title: Improvements in apparatus for the treatment of effluent
IPC: C02F1/52
Filed: 1965-07-07
Abstract: Effluent is fed from a holding tank in controlled quantities to a mixing tank for treatment with controlled quantities of reagents and then the end-product flows under gravity to a settling tank.  The preferred feed to the mixing tank of reagents is by control under gravity.
Patent GB-489362-A (GB)
Title: Cathode ray tube arrangement
IPC: H01J31/50
Filed: 1936-10-23
Abstract: 489,362. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE. Oct. 23, 1936, Nos. 28849 and 28850. Convention dates, Oct. 25, 1935 and Nov. 29, 1935. [Classes 39 (i) and 40 (iii)] A cathode-ray tube for transmitting or receiving television in which a bundle of light rays and a scanning bundle of cathode-rays produced by a preferably hot cathode are situated practically perpendicular to and on the same side of a screen, has means between the screen and an anode for deflecting one of the bundles inside the tube, so that the bundles are inclined to each other at a greater distance along the beam from said screen than the distance over which they are practically perpendicular thereto, and so that they both cover a complete picture area. In the form shown in Fig. 1, the cathode-ray E is initially parallel to the mosaic screen M but is deflected by a magnetic field or an electrostatic field to fall perpendicularly upon it. The image O to be transmitted is thrown by the lens L perpendicularly upon the screen. For reception the screen M is fluorescent and the received image is thrown on a screen in the place of O. Alternatively, the light beam may be reflected, for example by a plane or concave mirror S, Fig. 2. The mirror is apertured to pass the beam and may be maintained at anode potential. Deflecting plates may be arranged before or after the mirror. In Fig. 5 a small mirror S, 5-10 mms. square, is placed within the tube (not shown) to one side of the cathode-ray C. An intermediate image of the object O is formed at O<1> by the lens L1, and a second lens L2 focuses this image upon the screen P, at the same time focusing the first lens L1 upon the mirror S, which thus becomes a point of minimum cross-section of the beam. To correct the loss of focus caused by the mirror being to one side of the axis of the screen, the lens L2 may be tilted slightly as at L<1>2. Trapezoidal distortion is minimized by making the distance between O<1> and L2 at least twice the size of O<1>. A totally reflecting prism may replace the mirror S. The fluorescent screen in a receiving tube may have a reflecting backing. The Specification as open to inspection under Sect. 91 includes also a modification in which a mosaic screen with a signal electrode of silver, gold or copper is made transparent and the image is thrown onto the opposite side to that scanned by the cathode-ray. It states also that the mirror S, Fig. 2, may have a slotted or rectangular aperture, the deflecting plates being situated on either side, or one or each side of the mirror, and that the mirror may be outside the tube. The lens Ll may also be tilted to remove trapezoidal distortion. Image dissectors are referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-427482-A (GB)
Title: Railway vehicle truck and suspension system therefor
IPC: B61F5/30
Filed: 1933-10-19
Abstract: 427,482. Railway - vehicle undercarriages. PIRON, E. H., 210, Highland Avenue, Detroit, Michigan, U.S.A. Oct. 19, 1933, No. 28971. Convention date, April 3. [Class 103 (vi)] In order to permit the axles of a railwayvehicle truck to have a limited resiliently controlled movement in all directions relative to the truck frame, rings 11, 12, Fig. 2, of rubber or like material are interposed between the side members 1 of the frame and pairs of oval plates 6, 7, Fig. 4, between which the axle is mounted. Preferably the rubber rings are clamped between discs 14, 16 bearing respectively against the side members 1 and the plates 6, 7, the discs 14 having annular flanges 15 spaced a convenient distance from bolts 17 connecting the plates 6, 7. Slipping of the rubber rings is prevented by tightening up the bolts 17 and by providing the rings and coacting surfaces of the discs 14, 16 with concentric ribs or grooves 20 21. With this arrangement transverse movement of the axles is resisted by compression of the rubber rings, while longitudinal and vertical movements are opposed by the shear stresses within the rubber. The axle journal 5, Fig. 3, bears directly against inwardly directed flanges 8 on the plates 6, 7, and against an annular spacing sleeve 9 located between these flanges.
Patent GB-799484-A (GB)
Title: Automatic lubricators
Inventor: FREEMAN FRANK GEORGE
IPC: F16N7/30
Filed: 1955-10-12
Abstract: 799,484. Lubricating. LUCAS (INDUSTRIES), Ltd., J. Oct. 2, 1956 [Oct. 12, 1955], No. 29039/55. Class 12 (3). In an automatic lubricator for supplying oil to ball and roller bearings in, for example, an air-driven turbine, a body part a has two coaxial cylinders b, c in which, respectively, a plunger g and a piston h operate. Compressed air, from a main air line n, passes through a pipe m and forces the piston h along the cylinder c against the action of a spring i, causing the plunger g to discharge oil from the cylinder b into an oil delivery passage q. Some of the compressed air passes the piston h and, by way of passage p, enters the oil delivery passage q to blow the oil along in the form of a mist. Near the end of the discharge stroke a plug k on the end of the plunger g enters a throttle bore d, so restricting the rate of movement of the plunger g and piston h for the remainder of their travel, while, during this time, compressed air scavenges any oil in the delivery passage q. At the end of the discharge stroke the air piston h abuts against a shoulder r in cylinder c and so prevents further flow of compressed air into the passage p. When the compressed air is shut off, for example by closing the turbine control valve o, the spring i returns the plunger g and piston h to their initial positions, thus recharging cylinder b with oil the flow of which is controlled by inlet and outlet valves e, f.
Patent GB-445428-A (GB)
Title: Method for synchronising the reception of television images
IPC: H04B1/16
Filed: 1934-10-11
Abstract: 445,428. Television. RADIOAKT.- GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. Oct. 11, 1934, No. 29094. Convention date, Oct. 11, 1933. [Classes 40 (iii) and 40 (v)] An amplitude filter for separating synchronizing signals from picture signals consists of a diode 36, in the anode circuit of which are two transformers 41, 42 responsive to the synchronizing signals. The cathode is capacitatively coupled to a lead 37 carrying the received signals and is biassed with respect to the anode by a positive potential 40, which is equal to the maximum potential of the image signals. The transformers 41, 42 are tuned respectively to the short line synchronizing signals and the long framing-signals. To obtain a voltage for automatically regulating the amplification, a gas-filled diode 44, biassed by a battery 45 to a few volts less than the ignition potential, passes a large current during the short synchronizing signals to charge a small condenser 43 of 2000 cms. to the negative peak value of the signal. The condenser and a leak resistance 47 have a time constant greater than the interval between the synchronizing signals. According to a modification, the two diodes are replaced by a diode-triode, Fig. 3 (not shown).
Patent GB-747853-A (GB)
Title: Improvements in or relating to detachable support mountings for attachment to tractors
Inventor: CHAMBERS JOHN MALET
IPC: A01M7/00
Filed: 1951-12-17
Abstract: 747,853. Tank vehicles. MASSEY-HARRIS. FERGUSON (SALES), Ltd., [formerly FERGUSON, Ltd., H.]. March 17, 1953 [Dec. 17, 1951], No. 29426/51. Class 108 (1). A detachable mounting for supporting spraying tanks on a tractor, comprises an arm 9 and a strut 18 on each side of the vehicle fixed to brackets 3 and plates 6 bolted to the rear axle casing. Each arm 9 is extended to form an L by a limb 12 welded thereto, and the struts 18 are detachably hinged to the forward ends of the arms 9. Frames 13 are welded to the members 9 and 12 to support the tanks which are tied together by a cross-bar 20 to relieve torsional stresses.
Patent GB-917848-A (GB)
Title: Method for the polymerization of acrylonitrile
IPC: C08F20/44
Filed: 1961-08-15
Abstract: Acrylonitrile is polymerized in dimethyl sulphoxide in the presence of a catalyst, the reaction being started at an elevated temperature which is gradually reduced as polymerization proceeds, e.g. the reaction is started at a temperature of 50 DEG  to 80 DEG C. and gradually reduced to from 20 DEG  to 40 DEG C.  Catalysts specified are ammonium persulphate, azodiisobutyronitrile and ultra-violet light.  If desired, further quantities of catalyst, solvent and monomer may be added as the reaction proceeds.  Polymerization may be stopped when the desired viscosity has been achieved by adding a chain stopper, e.g. phenol.  Specification 917,847 is referred to.
Patent GB-174186-A (GB)
Title: Improvements in barbers' appliances
IPC: A45D44/06
Filed: 1920-10-19
Abstract: 174,186. Coffman, S. M. Oct, 19, 1920. Hair-cutting appliances, barbers' and like.-A support for barbers' appliances such as hair-clippers, massaging-appliances, manicuring appliances, hair-driers, &c. comprises a wire track 1, Fig. 1, supported at each end, on which is mounted a wheeled carriage 3 provided with means 11 to grip the track and hold the carriage stationary when required, and suspension means 22 to support the various devices. The carriage 3 is provided with grooved wheels 4 to engage the wire 1 and also guard-wheels 5 to engage underneath the trunk. The guard-wheels are slidably and rotatably mounted on stub shafts 7, Fig. 8. On forcing the wheels 5 inwardly against the action of the spring 9, they are forced from beneath the track so that the carriage may be removed therefrom. The clamp 11 is mounted upon a bolt 12, Fig. 6, provided with a thumbnut 13, a spring 16 being provided to release the clamp when the nut 13 in unscrewed. The suspension tube 22 which is mounted in a split sleeve 18 carries spider arms 27, Fig. 1, from which the various devices are supported. One of these arms is provided with a hook 42 from which is supported an electric motor 43 provided with a flexible shaft 44 to drive clippers 46. The arm 30 from which the clipper is suspended is hinged to actuate an electric switch so that on removing the clipper the motor circuit is completed. An electric lamp 48 in parallel with the motor circuit is mounted on the member 22. Current is led to the motor through a flexible lead 57 attached to a wall plug 59.
Patent GB-1101322-A (GB)
Title: Improvements in or relating to a screw threading head for use with a machine tool
IPC: B23G1/16
Filed: 1965-07-13
Abstract: 1,101,322. Clutch control; friction clutches. NATIONAL ACME CO. 13 July, 1965 [23 July, 1964], No. 29592/65. Headings F2C and F2L. [Also in Division B3] In a screw-cutting head a lead screw 25 is rotated at one of two speeds through a double friction-clutch unit 31, Fig. 2, and a lead nut is rotated at the same speed as the lead screw through one set of plates in a friction clutch unit 32, or at a different speed thereto, through a second set of plates. Unit 31 comprises a first hollow input shaft 130, Fig. 4, and a second input shaft 130<SP>1</SP>, the shafts carrying friction plates 132, 132<SP>1</SP> respectively which co-operate with friction plates 131, 131<SP>1</SP> carried by output shaft 49, to form two friction-clutches. The plates are disposed between thrust plates 133 133<SP>1</SP>, and axially movable thrust plates 134, 134<SP>1</SP>. The latter are moved by non-rotating pneumatic pistons 146, 146<SP>1</SP>, which have inclined faces 143, 143<SP>1</SP> for engaging balls 141, 141<SP>1</SP>, which in turn engage plate 134, 1341. The pistons are interconnected by keys 152 so that only one of the clutches can be engaged at any time. The output shaft 49 of unit 31 extends into unit 32, Fig. 5. A first friction-clutch for driving a sleeve 78 and the lead nut 26 keyed thereto from shaft 49 comprises a slidable sleeve 61 including an air piston 66 carrying slidable clutch plates 76, which co-operate with plates 77 slidable in fingers 79 extending from the flange 78a of a clutch thrust sleeve 78. A second friction-clutch for driving sleeve 78 and nut 26 from gears 90, 91 comprises plates 81 slidable in fingers 79 which co-operate with plates 89 slidable in fingers 88 forming part of gear 90, a thrust plate 84 being urged to engage plates 81, 89 by springs 85. In operation, plates 81, 89 are held in engagement and torque is transmitted to sleeve 78 from gear 90 with plates 76, 77 disengaged. When air is supplied to piston 66, sleeve 61 moves to the right, and thrust plate 84 is forced against flange 78a, springs 85 are compressed, and the torque is transmitted to sleeve 78 from shaft 49 through plates 76, 77.
Patent GB-629494-A (GB)
Title: Improvements in or relating to adjustable reclining chairs or like articles of furniture
IPC: A47C1/0355
Filed: 1947-11-06
Abstract: 629,494. Seats. LORENZ, A. Nov. 6, 1947, No. 29594. Convention date, Nov. 7, 1946. [Class 52 (ii)] In an adjustable reclining chair or the like wherein a seat, a back rest and a link chain comprising a number of connecting links form the movable members of a link-system swingably mounted on a fixed support and wherein the movements of a leg rest, swingably mounted on the seat are controlled by a controlling means, the leg rest is controlled by a controlling link one end of which is pivoted to a link of the link chain and the other end to the leg rest. As shown the back rest 214 and seat 218 are pivoted at 216 to a support 210 and are interconnected by a link chain consisting of a front link 222 and a top link 226 the link system being guided in its movements by a guiding link 236 pivoted to the support at 238 and to the top link 226 at 270. The leg-rest controlling link 248 is pivoted at 272 to the front connecting link 222 and at 252 to an extension 244 of the leg rest 240. Limiting stops 254, 256 are provided to define the seating and the extreme reclining positions and a locking arrangement 258 is provided to clamp the movable parts together and so lock the chair in any desired adjusted position. In modifications the back rest and seat may be pivoted to the support at spaced points, an intermediate link may be introduced between the front and the top links, one end of the controlling link may be pivoted to the top link or an extension thereof, or to an extension of the front link or to the pivot between the front and top links while the other end of the controlling link may be pivoted to the leg rest itself instead of to an extension thereof and the guiding link may be replaced by guiding means incorporating sliding means.
Patent GB-711027-A (GB)
Title: Improvements in and relating to the control for electrically heated bed coverings
IPC: G05D23/24
Filed: 1952-11-24
Abstract: 711,027. Automatic temperature control systems. GENERAL ELECTRIC CO. Nov. 24, 1952 [Nov. 29, 1951], No. 29638/52. Class 38(4) The distributed electrical heating element of a bed covering is supplied through a cycling bimetallic switch having two heaters one or other of which is automatically connected in series with the main heating element according to the temperature of the bed covering. As shown an electrically-heated bed covering 1, e.g. a sheet or blanket, has an internal heater 3 which is supplied, through contacts 15 of relay 16 and contacts 26, 27 of a bimetallic switch 18, from and A.C. source (not shown) to which plug 14 is connected. Relay 16 is normally closed and bimetallic switch 18 is operated intermittently by reason of its series connected heater 24. The bimetallic 'switch thus maintains the temperature of the covering at a value dependent on the setting of a stop 28, ambient temperature variations being compensated by their effect off the bimetallic switch. Compensation for rise of temperature caused, for example, by placing another unheated covering over covering 1 is effected by the change in impedance of a material 6 such as nylon, between heater 3 and a winding 5, causing a bridge circuit formed by impedances 31-34 to approach nearer balance so that a relay 22 is operated and an additional heater 25 introduced to increase the heating of the bimetallic switch and decrease the energy supply to heater 3. If for any reason a still greater rise in temperature occurs the bridge circuit becomes more nearly balanced and relay 16 operates to switch off the supply. "On" and " off " push buttons 36 and 37 and an indicator neon 38 are provided.
Patent GB-483694-A (GB)
Title: Improvements in and relating to the preparation of suspensions of titanium pigments
IPC: C09K23/00
Filed: 1937-10-30
Abstract: Suspensions of titanium pigments in aliphatic alcohols or ketones are obtained with the aid of a dispersing agent comprising a tannic acid composition which includes derivatives of polyhydroxy-benzoic acids such as gallotannic acid, tannic acid, pyrogallic acid and other tanning materials occurring in barks and nuts.  The alcohols and ketones are preferably those of low molecular weight, e.g. alcohols having 5 or less carbon atoms and ketones having 7 or less carbon atoms such as methanol, ethanol, acetone and methyl-n-butyl ketone. Suitable pigments include titanium dioxide, composite pigments containing also barium or calcium sulphates or those containing titanates of calcium, barium, zinc or lead.  The dispersing agent used comprises p  0,1-2,0 per cent, preferably 0,1-0,5 per cent of the weight of the alcohol or ketone in the final suspension.  The dispersion may be effected in any suitable manner, for example a paste containing a large proportion of pigment may be prepared and diluted for use.  The suspensions are suitable for the manufacture of shoe-polishes &c. or for quickdrying inks, for which a dye, preferably an aniline dye, may be dissolved in the alcohol or ketone. Pastes containing ketones may be mixed with ketonic solutions of vinyl chlorideacetate conjoint polymers for preparing pigmented coating-compositions.ALSO:Suspensions of titanium pigments in aliphatic alcohols and ketones obtained with the aid of a tannic acid composition as dispersing agent, may be mixed with ketonic solutions of vinyl chloride-acetate conjoint polymers for preparing pigmented coating compositions.  Suitable pigments include titanium dioxide, composite pigments containing also barium or calcium sulphates or those containing titanates of calcium, barium, zinc or lead.